Republican Sen. Lindsey Graham of South Carolina on Monday warned Turkey a bipartisan group of lawmakers would introduce sanctions against it and "call for their suspension from NATO" if it attacks the Kurds in Syria.

Graham, who sits on the Senate Foreign Relations Committee, said, "We will introduce bipartisan sanctions against Turkey if they invade Syria and will call for their suspension from NATO if they attack Kurdish forces who assisted the U.S. in the destruction of the ISIS Caliphate."

"Hope and expect sanctions against Turkey — if necessary — would be veto-proof," Graham added. He said he'd just spoken with Democratic Sen. Chris Van Hollen, who was on board…